Kereu at SH35

Located 15 minutes’ drive above Te Kaha where State Highway 35 crosses Kereu River. This area is well-known for its constant sunshine, breath-taking coastal views, and pristine waters. This shallow river is surrounded by native bush and offers people calm waters where they can cool off on a hot summers day.

Water Quality

Water quality data for this site

Can I trust this data?

This dashboard shows information on the data collected by the regional councils for water quality indicators, analysed as state and trend.

State

State shows how the median of samples from this site compares to other sites.

This site is a Lowland Forest site. Currently showing the state of this site compared to:

The Cawthron Institute has worked alongside regional councils to verify the processes and methods used for data collection, laboratory analysis of samples collected and the statistical analysis and interpretation of the results presented.

If all Cawthron ticks are green, then you can trust this data. However, if one or more ticks are orange, then conclusions should be treated with some caution.

All samples were collected using approved field protocols and have been analysed in accredited laboratories. Therefore the data shown here has been collected and analysed following best practice.

State

All samples were collected using approved field protocols and have been analysed in accredited laboratories.

Bacteria

E. coli

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State

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State

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NOF Band

N/A

NOF Band

Trend

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Sample history at this site

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E. coli samples for Kereu at SH35

n/100ml

What is this graph showing me?

This graph is displaying E. coli concentrations over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.

What do the icons mean?

For at least half the time, the estimated risk is <1 in 1000 (0.1% risk). The predicted average infection risk is 1%*.

B

For at least half the time, the estimated risk is <1 in 1000 (0.1% risk). The predicted average infection risk is 2%*.

C

For at least half the time, the estimated risk is <1 in 1000 (0.1% risk). The predicted average infection risk is 3%*.

D

20-30% of the time, the estimated risk is >=50 in 1000 (>5% risk). The predicted average infection risk is >3%*.

E

For more than 30% of the time, the estimated risk is >=50 in 1000 (>5% risk). The predicted average infection risk is >7%*.

* The predicted average infection risk is the overall average infection to swimmers based on a random exposure on a random day,
ignoring any possibility of not swimming during high flows or when a surveillance advisory is in place (assuming that the
E. coli
concentration follows a lognormal distribution). Actual risk will generally be less if a person does not swim during high flows.

Clarity

State

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Trend

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Sample history at this site

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Black Disc samples for Kereu at SH35

metres

What is this graph showing me?

This graph is displaying Black Disc readings over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.

State

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Trend

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Sample history at this site

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Turbidity samples for Kereu at SH35

NTU

What is this graph showing me?

This graph is displaying Turbidity levels over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.

Nitrogen

Total Nitrogen

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State

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Trend

{{trendMsg(TN)}}

Sample history at this site

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Total Nitrogen samples for Kereu at SH35

g/m3

What is this graph showing me?

This graph is displaying Total Nitrogen concentrations over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.

State

State

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NOF Band

N/A

NOF Band

Trend

{{trendMsg(TON)}}

Sample history at this site

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Total Oxidised Nitrogen samples for Kereu at SH35

g/m3

What is this graph showing me?

This graph is displaying Total Oxidised Nitrogen concentrations over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.

Water quality is not considered suitable for the designated use.Impacts on growth of multiple species, and effects starts approaching acute impact level (i.e. risk of death) for sensitive species at higher concentrations (>20 mg/L).

State

State

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NOF Band

N/A

NOF Band

Trend

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Sample history at this site

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Ammoniacal Nitrogen samples for Kereu at SH35

g/m3

What is this graph showing me?

This graph is displaying Ammoniacal Nitrogen concentrations over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.

Phosphorus

State

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Trend

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Sample history at this site

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Dissolved Reactive Phosphorus samples for Kereu at SH35

g/m3

What is this graph showing me?

This graph is displaying Dissolved Reactive Phosphorus concentrations over the selected time period. You can adjust this period by changing the dropdowns. These records form the basis for the state and trend indicators displayed on the dashboard. This data is raw and has not had any methodology applied to it.